Stay updated with real-time air quality in Chester City, Pennsylvania featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
37
Good
Chester City, Pennsylvania
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.47 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.79 μg/m³
0
55
155
255
425
605+
39.86 ppb
0
55
71
86
201
201+
0.34 ppb
0
36
76
186
605
1005+
11.52 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Chester City, Pennsylvania
Chester City, Pennsylvania
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AQI 33
Good
6.44μg/m³
PM2.5
28.67μg/m³
PM10
29.55ppb
O3
0.23ppb
SO2
5.21ppb
NO2
0.35ppm
CO
AQI 33
Good
6.28μg/m³
PM2.5
27.80μg/m³
PM10
28.06ppb
O3
0.24ppb
SO2
5.24ppb
NO2
0.34ppm
CO
AQI 33
Good
6.44μg/m³
PM2.5
28.47μg/m³
PM10
27.86ppb
O3
0.28ppb
SO2
6.11ppb
NO2
0.37ppm
CO
AQI 33
Good
6.03μg/m³
PM2.5
26.41μg/m³
PM10
26.18ppb
O3
0.24ppb
SO2
5.37ppb
NO2
0.34ppm
CO
AQI 33
Good
5.90μg/m³
PM2.5
25.64μg/m³
PM10
25.96ppb
O3
0.24ppb
SO2
5.54ppb
NO2
0.34ppm
CO
AQI 38
Good
6.75μg/m³
PM2.5
29.89μg/m³
PM10
25.95ppb
O3
0.38ppb
SO2
8.03ppb
NO2
0.40ppm
CO
Air quality data and pollutant measurements for Pennsylvania, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Chester City, Pennsylvania is updated every hour.
The worst air quality in Chester City, Pennsylvania in the last 24 hours was observed at 12:00:00 on 2025-10-21.
In the last 24 hrs, the best air quality in Chester City, Pennsylvania was observed at 06:00:00 on 2025-10-21.
The current air quality in Chester City, Pennsylvania is 37, categorized as Good based on real-time data.
The most common pollutant in Chester City, Pennsylvania is O3.
If the air quality in Chester City, Pennsylvania is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Chester City, Pennsylvania is 4.47 μg/m3.
The current PM10 concentration at Chester City, Pennsylvania is 19.793 μg/m3.
The current carbon monoxide (CO) concentration at Chester City, Pennsylvania is 0.337 ppm.
The current sulfur dioxide (SO2) concentration at Chester City, Pennsylvania is 0.336 ppb.
The current ozone (O3) concentration at Chester City, Pennsylvania is 39.856 ppm.
The current nitrogen dioxide (NO2) concentration at Chester City, Pennsylvania is 11.519 ppb.
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